/Engine/Source/Runtime/LevelSequence/Public/LevelSequence.h
Find meta-data of a particular type for this level sequence instance, adding it if it doesn't already exist.
An instance of this class as metadata on this Level Sequence.
[UObject](API\Runtime\CoreUObject\UObject\UObject) * FindOrAddMetaDataByClass ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UObject](API\Runtime\CoreUObject\UObject\UObject) > InClass )